AKT-0013

A 12-year-old girl has recently arrived from Lithuania and registered with your practice. Lithuania is a country with an incidence of more than 40 per 100000 of tuberculosis. Mantoux testing has been carried out to screen for latent tuberculosis. It is unclear if she has ever had BCG immunisation and there are no scars suggestive of this. After 3 days the diameter of induration is 10 mm.
Select from the list the single most correct management option.